Update the vendor folder (#53)

* Update the vendor folder

* Update the Gopkg.lock by running dep ensure

vendor/github.com/opencontainers/runc/man/runc.8.md

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+# NAME
+   runc - Open Container Initiative runtime
+
+# SYNOPSIS
+   runc [global options] command [command options] [arguments...]
+   
+# DESCRIPTION
+runc is a command line client for running applications packaged according to
+the Open Container Format (OCF) and is a compliant implementation of the
+Open Container Initiative specification.
+
+runc integrates well with existing process supervisors to provide a production
+container runtime environment for applications. It can be used with your
+existing process monitoring tools and the container will be spawned as a
+direct child of the process supervisor.
+
+Containers are configured using bundles. A bundle for a container is a directory
+that includes a specification file named "config.json" and a root filesystem.
+The root filesystem contains the contents of the container. 
+
+To start a new instance of a container:
+
+    # runc start [ -b bundle ] <container-id>
+
+Where "<container-id>" is your name for the instance of the container that you
+are starting. The name you provide for the container instance must be unique on
+your host. Providing the bundle directory using "-b" is optional. The default
+value for "bundle" is the current directory.
+
+# COMMANDS
+   checkpoint   checkpoint a running container
+   delete       delete any resources held by the container often used with detached containers
+   events       display container events such as OOM notifications, cpu, memory, IO and network stats
+   exec         execute new process inside the container
+   kill         kill sends the specified signal (default: SIGTERM) to the container's init process
+   list         lists containers started by runc with the given root
+   pause        pause suspends all processes inside the container
+   restore      restore a container from a previous checkpoint
+   resume       resumes all processes that have been previously paused
+   spec         create a new specification file
+   start        create and run a container
+   state        output the state of a container
+   help, h      Shows a list of commands or help for one command
+   
+# GLOBAL OPTIONS
+   --debug                                      enable debug output for logging
+   --log                                        set the log file path where internal debug information is written
+   --log-format "text"                          set the format used by logs ('text' (default), or 'json')
+   --root "/run/opencontainer/containers"       root directory for storage of container state (this should be located in tmpfs)
+   --criu "criu"                                path to the criu binary used for checkpoint and restore
+   --systemd-cgroup                             enable systemd cgroup support, expects cgroupsPath to be of form "slice:prefix:name" for e.g. "system.slice:runc:434234"
+   --help, -h                                   show help
+   --version, -v                                print the version